Changes of the cytokine mRNA expression levels in the ovary. Cytokine mRNA was isolated from culture positive ovary tissue at 2 days pi (A) and 6 days pi (B). As values are subtracted from the negative endpoint, higher values represent higher levels of cytokine mRNA levels. Error bars are S.E. for each treatment group (*P < 0.05, **P < 0.01) between WT (white bars) and ΔgtxA mutant groups (black bars).